Some Common 31P Chemical Shifts
| Compound | Chemical Shift (ppm) Relative to 85% H3PO4 |
|---|---|
| PMe3 | -62 |
| PEt3 | -20 |
| PPr(n)3 | -33 |
| PPr(i)3 | +19.4 |
| PBu(n)3 | -32.5 |
| PBu(i)3 | -45.3 |
| PBu(s)3 | +7.9 |
| PBu(t)3 | +63 |
| PMeF2 | 245 |
| PMeH2 | -163.5 |
| PMeCl2 | +192 |
| PMeBr2 | +184 |
| PMe2F | +186 |
| PMe2H | -99 |
| PMe2Cl | -96.5 |
| PMe2Br | -90.5 |
| Compound | Chemical Shift (ppm) Relative to 85% H3PO4 |
|---|---|
| Me3PO | +36.2 |
| Et3PO | +48.3 |
| [Me4P]+1 | +24.4 |
| [PO4]-3 | +6.0 |
| PF5 | -80.3 |
| PCl5 | -80 |
| MePF4 | -29.9 |
| Me3PF2 | -158 |
| Me3PS | +59.1 |
| Et3PS | +54.5 |
| [Et4p]+1 | +40.1 |
| [PS4]-3 | +87 |
| [PF6]-1 | -145 |
| [PCl4]+1 | +86 |
| [PCl6]-1 | -295 |
| Me2PF3 | +8.0 |
From: http://www.chem.uni-potsdam.de/tools/e_31p.html
H3PO4 = 0ppm
All values are given in ppm !!!
| Type | shift ranges |
|---|---|
| CPH2 | -150 to -120 ppm |
| C2PH | -100 to 80ppm |
| C3P | -60 to -10 ppm |
| C2PHal | 80 to 150 ppm |
| P(NR)3 | 115 to 130 ppm |
| P(OR)3 | 125 to 145 ppm |
| P(SR)3 | 110 to 120 ppm |
| PHal3 | 120 to 225 ppm |
| P(OR)2Hal | 140 to 190 ppm |
| CPHal2 | 160 to 200ppm |
| CPHalN | 165 to 185 ppm |
| O=PHal3 | -80 to 5 ppm |
| O=P(OR)Hal2 | -30 to 15 ppm |
| O=P(OR)2Hal | -20 to 25 ppm |
| O=P(OR)3 | -20 to 0 ppm |
| S=P(OR)3 | 60 to 75 ppm |
| CP(=O)(OR)2 | -5 to 70 ppm |
| CP(=S)(OR)2 | 80 to 110 ppm |
| CP(=O)(OH)2 | -5 to 25 ppm |
| (RO)2POH | 0 to 20 ppm |
| C2P(=O)OR | 0 to 60 ppm |
| CP(=O)Hal2 | 5 top 70 ppm |
| CP(=O)HalN | 25 to 50 ppm |
| C3P=OC3P=S | 20 to 60 ppm |
| C2P(=O)Hal | 40 to 90 ppm |
| P(OR)5 | -75 to -5 ppm |
| C4P+Hal- | -5 to 30 ppm |
| Ar3P=CR2 | 5 to 25 ppm |